问题 单项选择题

在事务处理过程中,如果由于某些内部条件而使事务无法继续正常执行,则表示出现了

A.由逻辑错误引起的事务故障

B.由系统错误引起舶事务故障

C.系统故障

D.磁盘故障

答案

参考答案:B

解析: 系统故障包括:特定类型的硬件错误、操作系统故障、DBMS代码错误等内部条件使得事物无法继续正常执行。

单项选择题
阅读理解

Every year holidays Broughton teams up with Sopraviva Trekking to offer twelve days of unforgettable adventure in a tropical rain forest.Depending on where this year’s rain forest adventure is located, you may be going to Borneo, Malaysia ,Indonesia,or even to the greatest rain forest of them all, the mighty Amazonian forest.

You will fly with your fellow adventurers to one of our special base camps at the edge of the forest, where you will be given five days of survival training ,and talks on the local wildlife by trained and experienced experts.You will also go on walks which take you deeper and deeper under the forest canopy until on your final night you camp out in the rain forest itself.

Then you transfer by bus into the forest itself.If you go on one of the Asian holidays, you will have to walk the final miles to the camp site itself, to avoid disturbing the local ecology.All of the Sopraviva sites have been carefully built to conform with the latest regulations, and to cause the minimal amount of disturbance to the local wildlife.

From the camp ,you will go on daily walking tours to experience for yourself the beauty and diversity of the forests, and plants and vegetation that can be found nowhere else on the planet.Remember that these adventure holidays take you deep into the wilderness ,and they are not suitable for families with young children or for anyone who is not physically able to meet the demands of this kind of adventure.Also remember that in order to preserve the delicate ecological system that you will be walking through ,no more than two dozen guests can stay at any camp at one time, so if you want to go on one of these very special holidays ,you will need to book early!

小题1:If you want to go on the camp ,you will first have to          

A.attend talks on the local wildlife

B.have survival training

C.walk the final five miles

D.book beforehand小题2:What does the organizer of the camp mainly stress?

A.Disturbing the local ecology.

B.Preserving the forest environment.

C.Private possessions and possible dangers.

D.The survival training小题3:Go on daily walking tours and you’ll enjoy         

A.the wilderness

B.the Amazonian forest

C.the Asian forest

D.the forest canopy小题4:Which of the following people is/are allowed to enter the forest?

A.A family with young kids.

B.A person with physical problems.

C.Walking tourists.

D.Cyclists.小题5:Which of the following is true of the holiday camp?

A.It is free of charge

B.It lasts 12 days.

C.It is organized by Broughton.

D.It attaches little importance to ecology.